Charlie P.

You could probably do very well with standard servos.  I plan on taking full advantage ot all the tail control surfaces so I used Tower TS-160 digital metal gear for the elevator and rudder.  The ailerons I have HiTec HS-485HB Karbonite servos and the throttle is an el-cheapo Tower TS-53.

I filled some of the cowl cut-out with a fill/drain arrangement.  You can also see the exhaust piped are not quite symmetrical.  Note also the ARF comes with a blue spinner.  I just happened to have a red of the right size already cut for the prop I selected.